Sad-iron.



Patented July 22, 1913.

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C. J. JOHNSON.

SAD IRON. MPLIGATION FILED 111119,-1912.

P il -r iwf-*1 Patented July 22, 1913.

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C. J. JOHNSON.

SADIRON.

AIPLIUATION FILED MAY 9. 1912.

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C. J. JOHNSON.

SAD RON.

APPLICATION FILED MAY 9, 1912.

1,068,245, Patented July 22, 1913.

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UNTTED STATES PATENT OFFICE.

CHARLES J. JOHNSON, OF CEDAR RAPIDS, IOWA., ASSIGNOR 'I'O JOHNSON GAS.APPLI- ANCE COMPANY, 0F CEDAR RAPIDS, IO`WA, A CORPORATION OF IOWA.

SAD-IRON.

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To all eli/wm it may concern,

Be it known that l, Cuantas J. JoHNsoN, a citizen of the United States,residingl at Cedar Rapids, in the State of lfoiva, have invented a newand useful. improvement in Sad-liens, of which the following' is aspecification.

My invention relates to sad irons, adapted for use in large or smalllaundries, homes, factories or institutions, in which the iron is heatedfrom Within, preferably by a burning jet of gas, and in which thetemperature predetermined and of different degrees when the iron is atrest and when in use.

lt is adapted for any heating element, either natural or artificial gas,or electricity.

The objects of my invention are therefore, rst; to automatically fix alow temperature for the iron when not in use, and second, toautomatically tix a higher temperature when the iron is being operated.Tl'iese temperatures may he instantly altered, to suit the particularworlr in hand, and when once set, the iron requires no furtherattention, thus securing a maximum efficiency. I attain these objects bythe mechanism illustrated in the accompanying drawings, in Which,

Figure lf, shows a top view of the iron and its stand, When the iron isnot in use; Fig. ll, shows a side View thereof; Fig. lll, shows a topview of the iron Withdrawn from the stand for use, and When the higherheat is required; Fig. TV, shows an enlarged detail view, partly invertical section, of the valve mechanism which controls the amount ofgas; Fig. V, shows an enlarged horizontal section of the gas supplyvalve; VT, shows ay top view of a modified form of constructing thedevice; Fig. VH, shows a side vieu7 of lFig. VI, in both of Which viewsthe iron is in position when not in use, and Fig. VIH, shows the standon Which the iron rests when not in use, the gas supply valve being hereshown in vertical section.

Similar letters refer to similar parts throughout the various drawings.

l is the ironing board or table, of any usual construction. 2 is thestand, preferahly of cast iron. secured to one end of said table, and onwhich the iron rests vvhen not in. use.

3 are lugs on either side of the stand to secure same to the table bymeans of bolts.

Specification of Letters Patent.

Application filed May 9, 1912.

Patented July 22, 191".

serial No. 696,134.

Il, Zlare hifurcated extensions to the stand forming guides foi theiron.

is a boss for a lever arm of Which G is the forward and 7 the rear end.8 is a perforated boss on the rear end thereof.

9 is the inlet pipe for gas.

l0 is the valve housing.

1l is a plug and l2 a throttle valve, controlling the amount of 13 andlllare enlargements en the valve 12.

l5 is the port.

lo is the supply pipe to convey `to the burner Within the sad iron,which is of any suitable flexible construction.

17 is the sad iron and 1T is the mixer for the gas burner Within the sadiron.

18 is a guide lug on the iron, cooperating with the hifurcatcdextensions il on the stand.

19 are rollers on trunnions on the iron and 20 are seats therefor.

Q1 is the handle by which the iron is operated.

22 is the admission pipe to the gas burner.

23 is the bar actuating the valve. Q4- is a spring therefor.

25 is a spring for the throttle valve.

26 is the port er luy-pass.

27 is the port in the plug valve. 28 is an arm to control said plugvalve. 29 and 30 are stops for said arm. 3l is an adjustment screw toregulate same.

32 is an asbestos plate or stand.

ln the modified form shown in Figs. VI, VII, and VUT, the supply of gasis controlled hy the Weight of the ,nd iron. 83

vis a base plate supplied With lugs 34 and a stop 3G is the valvehousing. 37 is a pivotal iron rest supplied with lugs 38. 39 is a hingepin. l0 is an asbestos covering to the rest on which the iron is placedwhen not in use. il is an arm extending from said rest and 42 is thethrottle valve controlled by said arm. L3 is the spring to said throttlevalve. i4 is the gas inlet pipe. l5 is the gas outlet pipe, leading tothe burner Within the iron. 46 is the valve port. 47 is a ley-pass, 48the luy-pass valve, t9 the sad iron and 50 the gas inlet pipe to thesaid sad iron.

The device operates as follows, being illustrated by the preferredconstruction shown in Figs. I, Il, Hl, IV, and V: The iron here shownWeighs some thirty or forty pounds and is adapted for use in largelaundries. The iron in Fi gs. I and Il is not in use, and is hung on thebiturcated extensions 4, 4f. lVhen in this position the guide lug 18 incontact with the forward end 6 of the arm pivoted at 5 throws, by meansof its rear extension 7, the valve actuating bar 23 inward, and by meansof the enlargement 13, closes the port 15, which is normally kept openby means ot" the spring A reducedY supply ot gas is then sent throughthe bypass 26. This supply tor the iron when not in use can be reducedor increased by setting the adjustment screw 31 which limits themovement of the handle 28, and this in turn controls the port in theplug valve, 27, so that a low temperature may be maintained. `When it isdesired to use the iron, it is drawn from its supports by means of thehandle 21, the hooked end Ot 6 being liberated. This action permits thespring 25 to exercise its full capacity, thereby drawing the enlargement13 beyond the. port 15, and opening the path for a free flow of gasthrough the supply pipe 1G to the burner within the iron. The heating otthe iron being accomplished by a burner located within the said iron,and the supply remaining constant, insures uniformity ot temperature,and consequent uniformity of work. During temporary periods ot non-usethe iron is pushed onto the stand 2, the rollers 19 being passed overthe guides al till they rest in seats 20. This operation causes thethrottle valve 12-13 to close port 15 through the action of lug 18 uponlever 6 and bar 23. Then there is permitted but a limited supply of gasto flow through the by-pass 26, thus maintaining a low temperature inthe burner located within the iron.

In the modified form shown in Figs. VI, VH and VH1 the rocking stand onwhich the iron rests when not in use, closes, through the arm 41, theport 46 through the throttle valve 42. lNhen the iron is removed foruse, the spring 113 forces the throttle valve open, so that sutlicientgas is liberated to maintain a high temperature in the burner.

rl`he device is shown and described for use with a combustible gasthough other heat producing media may be used therewith.

What l claim as new and desire to secure by Letters Patent of the UnitedStates, is.

1. The combination otl an internally heated sad iron, means forsupplying gas thereto, a station of rest for the sad iron, means at saidstation for governing the flow of gas to the sad iron, and an operatingdevice for said governing means actuated and controlled by the sad ironwhen located in the stat-ion ot rest and when taken therefrom toautomatically increase the tiow of gas to the sad iron when the sad ironis taken from the station ot rest and to automatically reduce said flowwhen the sad iron is returned to said station.

2. The combination of an internally heated sad iron, means tor supplyinggas thereto, a station of rest tor the sad iron, means at Vsaid stat-ionfor governing the flow ot gas to the sad iron, an operating device jr'orsaid governing means actuated and controlled by the sad iron whenlocated in the station ot restand when taken therefrom to automat-i-`cally increase the flow of gas to the sad iron when the sad iron istaken from the station of rest and to automatically reduce said flowwhen the sad iron is returned to said station, and means for regulatingthe tlow of gas to the sad iron when the sad iron is in the station ofrest.

3. The combination ot an internally heated sad iron, means for supplyinggas thereto, a station ot rest for the sad iron, a valvular structure atsaid station tor governing the flow ot gas to the sad iron, andspringreturned lever mechanism acting,` upon a part ot said valvularstructure and actuated by the sad iron to automatically decrease theflow of gas when the sad iron is placed in the stat-ion of rest andautomatically increase the tlow of gas when the sad iron is taken fromthe station of rest.

4. The combination ot an internally heated sad iron, a station of resttherefor, a flexible gas pipe connecting the sad iron to said station, asupply pipe for leading gas to said station, a throttle valve in thesupply pipe, a cock-controlled by-pass around the throttle, and meansconnected to the throttle valve and actuated by the sad iron torautomatically closing said valve when the sad iron is placed in thestation ot rest and automatically opening said valve when the sad ironis removed from said station.

5. The combination ot an internally heated gas sad iron provided with aguide lug, a station of rest provided with a support t'or the sad iron,a pipe for supplying gas to said station and from the station to the sadiron, a valve in said supply pipe, and lever mechanism mounted upon saidsupport tor engagement by said guide lug and connected to said valve foroperation thereof in the manner set forth.

CHARLES J. JOHNSON.

Vitnesses:

H. E. SPANGLER, ELsm HUDSON.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. c.

